Overview
The JDZX6-15W is a single-phase outdoor epoxy resin cast voltage transformer designed for 15kV medium-voltage distribution systems. It uses advanced epoxy resin insulation technology, offering excellent resistance to moisture, UV exposure, and environmental stress for reliable long-term outdoor operation.
This transformer provides precise voltage measurement for both protection and metering applications, with accuracy classes of 0.2 and 0.5 available. Rated outputs range from 15VA to 50VA, supporting various burden requirements. It meets standard insulation levels of 15/17.5/105kV and is suitable for use in substations, industrial facilities, and outdoor switchgear where maintenance-free performance and durability are essential.
Key Ratings Snapshot
| Parameter | Rating |
|---|---|
| System Voltage | 15kV |
| Insulation Level | 15/17.5/105kV |
| Accuracy Classes | 0.2, 0.5 |
| Rated Output | 15–50VA |
| Phase Configuration | Single-phase |
| Insulation Material | Epoxy resin cast |
| Application Type | Outdoor |
| Primary Voltage | 15/√3 kV (phase-to-ground) |
| Secondary Voltage | 100/√3 V or 100 V |
| Maintenance Requirement | Maintenance-free |
| Weight | 28.89kg |
| Design Standard | IEC 61869-3 |
Construction
The JDZX6-15W features a robust epoxy resin cast construction that fully encapsulates the primary and secondary windings. This solid insulation system eliminates air gaps and prevents moisture ingress, ensuring stable dielectric performance under varying environmental conditions. The housing is made of UV-stabilized epoxy resin, providing long-term resistance to sunlight, rain, and temperature fluctuations. All external surfaces are smooth and hydrophobic, reducing pollution accumulation and enhancing creepage performance. The compact mechanical design includes integrated mounting brackets and standardized terminal arrangements for straightforward installation on outdoor support structures or switchgear frames.
Technical Parameters
Service Conditions
- Installation position: Outdoor switchgear, substations, or distribution points
- Ambient temperature: -20°C to +40°C
- Altitude: ≤ 1000m (standard), higher altitude available on request
- Insulation: Epoxy resin cast
- Frequency: 50Hz or 60Hz
- Grounding: Connect H2 and X3 terminals per local electrical codes
- Maintenance: Minimal maintenance required (epoxy resin design)
Technical Parameters
The JDZX6-15W is a single-phase outdoor epoxy resin cast voltage transformer designed for 15kV systems. It operates within an ambient temperature range of -20°C to +40°C and at altitudes up to 1000m, with compliance to GB20840.2-2014 and IEC61869-2:2012 standards.
| Rated
Voltage (kV) |
Accuracy class and Rated output (VA) | Max.
output |
||
|---|---|---|---|---|
| a-n (Metering or Monitoring) | ||||
| Output
voltage (V) |
Accuracy
class |
Rated
output (VA) |
||
| 15000/√3 | 100/√3 | 0.2 | 15 | 500VA |
| 0.5 | 50 | |||
Installation & Wiring
Installation Diagram
The JDZX6-15W is designed for outdoor installation on switchgear or substation structures. Mount using the 4-M6 holes on the side base (200mm spacing) or Ø12 holes in the plan view (240mm width, 165mm depth). Ensure the unit is securely fastened and properly grounded via the M8 ground terminal.
Wiring Diagram
Primary terminals are marked H1 and H2: connect H1 to the system voltage and H2 to system ground. Secondary terminals X1, X2, and X3 supply metering and protection circuits; X3 must be connected to ground. Verify the voltage ratio matches system requirements and confirm correct polarity before energizing.
Selection & FAQs
Selection Guide
- Select for 15kV system voltage with 15/17.5/105kV insulation level.
- Choose accuracy class 0.2 for high-precision metering or 0.5 for standard metering applications.
- Specify rated output between 15VA and 50VA based on connected burden requirements.
- Confirm system frequency: 50Hz or 60Hz.
- Ensure installation environment is outdoor, as the unit is designed for outdoor use only.
- Verify quantity and model designation (JDZX6-15W) when placing your order.
Frequently Asked Questions
Q1: What accuracy class is provided for metering applications?
The JDZX6-15W offers 0.2 and 0.5 accuracy classes for the a-n secondary winding. The 0.2 class provides 15VA output, while 0.5 provides 50VA. Specify your exact metering requirements during ordering.
Q2: How should the secondary terminals be grounded during installation?
Connect the H2 and X3 terminals to ground strictly according to local electrical codes. This epoxy resin cast design requires minimal maintenance once properly grounded. Consult our technical team for specific grounding diagrams.
Q3: Can this voltage transformer operate in high-altitude environments?
Standard models are rated for altitudes up to 1000m. For installations exceeding 1000m, customized high-altitude designs are available upon request. Contact our sales engineers with your exact site elevation for verification.
Q4: Which international standards does this 15kV transformer comply with?
The JDZX6-15W fully complies with GB20840.2-2014 and IEC61869-2:2012 standards. These certifications ensure reliable performance in 15kV outdoor switchgear and substations. Request the official test certificates from your procurement representative.
Q5: Are 60Hz configurations available for this epoxy resin model?
Yes, the transformer supports both 50Hz and 60Hz operating frequencies. Standard production defaults to 50Hz unless specified otherwise. Please confirm your required grid frequency when placing your purchase order.
Q6: Where is this single-phase epoxy resin transformer typically installed?
It is primarily installed in outdoor switchgear, substations, and distribution points for 15kV systems. It steps down the 15000/√3V primary voltage to 100/√3V for measurement. Verify site compatibility with our application engineers.
Q7: When should the 0.5 accuracy class be selected over 0.2?
Select the 0.5 class for general monitoring where 50VA output is sufficient. The 0.2 class is reserved for precision metering requiring 15VA output. Confirm your specific measurement needs with our engineering team.